Closure for barrels



Patented Nov. 23, 1920.

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Geo. 77. 60A/erw@ G. H. CULVVERWELL AND G. S. COX. CLOSURE FOR BRRELS.AP'PLlcAnoN FILED FEB.21, 1919.

G. H. CULVERWELL AND G. S. COX.

`cLosuR FOR BARRELS.

APPLICATION FILED FEB. 21, 1919.

Patented Nov. 23, 1920.

2 SHEETS-SHEET 2.

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'To all whom t may concern UNITED srA'rEs "PATENT OFFICE.

' GEORGE HENRY OULVERWELL AND GEORGE S'lEPrI-IEL!"l COX, OF OAK PARK,ILINOIS.'V

cresima FOR BARRELs.

4Specification of Lettersatent.' Patented NOW-23, 1920. i

.appiieaa'mny :ned February ariela serial No. traitee..1l y

Beit known that we, GEORGE HENRS'E' CUL.-V vERwELL and GEORGE STEPHENCox, citizens of the United States, residing at Oak Park,

' in the county of Cook andState of illinois,

have invented a new and useful Closure for Barrels, of which theVfollowing is a specirels, by means cf which they can be easily emptiedand cleaned.

l/Vith the above and other objects in view, our invention consists inthe improved combination and the arrangements of the several elements,to be hereinafter described 'and then more particularly pointed out inthe appended claims.

lWe attain these objects by the mechanism illustrated in theaccompanying drawings.

Figure 1 is a plan view of the end of theV barrel. Fig. 2 is a verticalsectional view Vof barrel on line 9.-9 of `Fig. 1. n

Fig. 3 is a detail view-of the cam lock. Fig. 4 is a plan view of theend ofthe barrel, showing a modified form of our invention. 4

Fig. 5 is a vertical sectional view of the barrel on line Sla-9a of Fig.4.

Fig. 6 is a detail view of the ratchet tooth cam lock. -Y Fig. 7 is adetail view of the wrench.. Referring in detail to the drawings, andparticularly to Fig, 1 and Fig. 2 thereof,

the

, indicates a circular opening in the end of the barrel, provided with adownwardly extending conical flange. Seated in opening 1 is cover 2formed with a convex upper surface, a circular strengthening groove, andan upwardly extending conical flange of a corresponding angle and sizeto make a forced fit in combination with the gasket 3 in the barrelsopening 1.. Mounted centrally on top of cover 2 is an upwardly eX-tending shoulder stud 5, on which the actuating cro'ssbar 4 isfulcrumedand retained. The actuating'crossv bar 4is of rectangular shape,provided with a hole midway of its length extending through its atwiseyportion, and of convenient size to fulcrum 'on stud5.

The locking elements of the closure shown inll 1 on line 9 9, arel thetapered edge cam locks T4-7a disposed diametrically opposite each otheryonthe end of the barrel, at a convenient distance fromrthe ledge ofopening 1, to allow the insertion of cover 2. In'Fig. Sl'we show thetapered edge cam locks -ffmore Vclearly in detail, lhaving an outwardlyvextending flange for fastening it to the end of the barrel, an upwardlyextending angular formed portion on one end of proportionate height toallow the entrance ofthe actuating cross bar 4V under the'cam edge. Theedge then tapering downward proportionately along its circular i length,from which the necessary energy is imposed on they actuating cross bar4, to seat cover .2 in opening 1. The cam locks 7`7af are also :providedwith aA-seriesV of threaded lholes and a lock screw 8.

To operate this closure,coverj 2 withthe gasket 3 isy inserted intoopening 1 with the actuating cross bar 4in a .cleared position of the cam locks 7---717 then manually turning the cross bar 4 the ends ofwhichare brought under and l.in Contact .with kthe 4edges of the camlocks -Ka and by a continual turningof the cross bar 4, a downwardpressure is createdon cover 2 forcing cover 2 yinto a wedged seatl inopening 1.

The cross bar V4 is then locked l.in its advancedposition by the lockscrew 8. 'i

In ythe modified `construction shown in Figs. 4 5 and 6 and 7, thetapered edge cam locks Kb7d rare provided with inverted ratchet teeth,spaced proportionately along the camming edge and are clearly shown indetail inFig. 6.` Thecamlocks b-d are provided -with slotted lugs on oneend,

which, in connection with the wrench 10, jl

are used to operate the closure. rlWhen manual pressure on the cross bar4 is discontinued said cross bar 4 has a tendency to recede from underthe edges of the cam locks Ib-7d. Furtherv movement of cross bar 4 isprevented by coming in contact with the vertical edges of the ratchetteeth on the cam locks. ln this construction the cam locks 7bd are notlocated diametrif cally opposite each other, one being slightly inadvance of the center line, so asto facilitate the releasing of thecross bar ll. The wrench l0, shown inV detail in Fig. 7,is Vprovidedwith a pilot hole of convenient size to fulcrum on the end of stud 5,said hole in wrench l0, is located midway of its length extendingthrough the liatwise portion. It is also provided with a raised lug anda stud 10iL extending through on each side, and a slot on one end, whichis used to operate the closure. In other respects, the construction ofthe closure illustrated in Figs. A4; and 7 is Vsimilar to thatpreviouslydescribed.

To operate the closure, cover 2 with the gasket 3 is inserted in opening1 with the cross bar fl in a cleared position of the cam locks -Tb-C/"dpWith the aid of wrench 10 piloted on the end of stud 5, and stud 10a 1ncontact against the edge of cross baril:

Vas indicated by ll, by manually turning Wrench l0, the ends ofV crossbar 4 are brought under and in contact with the ratchet teeth of the camlocks 'Tb-7d and are prevented from releasing by the vertical edge ofthe ratchet teeth; -To release the closure as shown in F ig. et, theslotted end of wrench 10 is inserted'in the slotted lug of the cam lock7b, the raised lug resting on top of, and stud l0a against the edge ofthe cross bar Ll and by a manual pressure downward and to the left ontheother end of Wrench l0, the end of the cross bar Il is disengagedfrom the vratchet tooth. By alternately applying lthe same operation toeach end of the cross bar Ll, the cover 2 can be easily removed. f

From the foregoing description taken in connection with the accompanyingdrawings, the constructiom'manner of operation and the severaladvantages of the invention will be clearly understood. This closure isparticularly designed for use on metallic barrels, for the convenienthandling of paint and other liquids, and to` provide an opening forcleansing'the barrel, though of course not necessarily .limited to suchuse.

It is obvious that our closure may be used for a great variety ofpurposes. For example, 1t is capable of elfectlve use on metal- `licbarrels, tanks', drums, receptacles and containers. VIt may in factbeused with any kind of a cover, closure or stopper, where a lockedclosure. is needed.

It is highly essential in the application of a closure to metallicbarrels, to provide a positive locking meansY and a'leak proof closure,to prevent a possible leakage caused by the rough usage andV handlinginV shipping..

It is of course manifest that this closure may be made in various sizesand also other forms, in accordance with the form and capacity of theparticularV barrel to which it is to be applied.` It is also understoodthat there may be ways of using one or more of the clamping means tolock `this-closure. Itis further to be understood, that while we haveherein shown and particularly'described several constructions of apractical character, it is manifest that the construction and relativearrangement of theseveral elements employed, may be considerably Vatedunder said clamping elements, that simultaneously urges the cover memberto its applied position 1n the barrels opening, a lock screw in theclamping elements for locking the actuating means. Y' I 2. Thecombination with a barrel having l a circular opening 'and a downwardlyextending conical flange, of a closure therefor including a covermember, an actuating means, a plurality of radially disposed clampingelementson the end of the barrel, each clamping element having `anv'outwardly extending flange for fastening it to the end of the barrel,an upwardly extending angular vformed portion on one end ofproportionate height to allow the entrance of the actuating bar,ardownwardly .extending camming edge tapering downwardA fromV the openend proportionately along its. circular length, a series of threadedholes in the raised portion and a lock .screw for locking the actuatingmeans.

' ciones HENRY CULvERwELL. Y GEORGE STEPHEN cox.

